Acid-resisting composition.



A. HINZKE. ACID RESISTING G0MP0SITI0N.-

APPLICATION FILED JULY 28. 1907.

I I 1 I 1 1/141 I I 8 W ,M .9, .4 SDI W 3 N .w M WW m W6 N 6 mm M v MM M00 CC 4 1 0 COMPOSITIONS, COATING OR PLASTIC.

UNITED STATES PATENT OFFICE.

ALBERT HINZKE, OF MUNISING, MICHIGAN, ASSIGNOR OF ONE-HALF TO HERBERT H.EVER- ARD, OF KALAMAZOO, MICHIGAN.

ACID-RESISTI'NG COMPOSITION.

Specification of Letters Patent.

Patented July 21, 1908.

Application filed July 26, 1907. Serial No. 385,738.

To all whom it may concern:

Be it known that I, ALBERT HINZKE, a citizen of the United States,residing at the city of Munising, county of Alger, State of 5 Michigan,have invented certain new and useful Improvements in Acid-ResistingCompositions, of which the following is a specification.

This invention relates to improvements in acid-resisting compositions.

My improved acid-resisting or acid-proof composition is particularlydesigned by me for use in lining boilers, commonly called digesters,used in connection with the manufacture of paper pulp or paper stock,

tanks and other receptacles and conduits for storing, boiling, orconveying corrosive li uids, although it is desirable and applicab e foruse in a great variety of relations.

The main objects of this invention are to provide an improvedacid-resisting composition which has great adhesive power, is unaffectedby heat, sets rapidly, and acquires an extraordinary degree of hardness.

5 Further objects will definitely appear from the detailed descriptionto follow.

My invention is clearly defined and pointed out in the claims.

I have shown in the accompanying drawiug my improved com osition used asa mortar in connection wit acid-resisting bricks, to illustrate itsgeneral application.

In the accompanying drawing, Figure 1 is a detail view of a digester, itbeing shown 5 partially in section to show structural details thereof.Fig. 2 is a detail vertical section of a cement tank having a lining, inwhich my im roved composition is used as a mortar.

n the preparation of my improved composition, I employ the followingingredients:

soluble silicate of soda; concentrated glycerin oxid of lead; and finelycrushed cinders. These ingredients I preferably combine in the followingproportions and manner: I first 5 mix about six parts of the solublesilicate of soda aft about 40 dggrees aume W1; one par 0 concentratevcerin at a out 30 degrees Baum, thesemfirfients being well stirredtogether until thoroughly incorpo- 0 rated. Of this mixture I take twoparts,

oxid-of lead 1 part, and finely crushed ciners 0 par s, he ingredientsbeing thorougEly mixed to a pasty or mortar-like consistency, in whichcondition the material should be applied. This I preferably apply as amortar, the bricks being heated when laid. I preferably employ coalcinders entirely free fiom wood ashes, a ou 0 er suitable fillermaterial might be su stituted therefor.

In the structure shown in Fig. 1 of the drawing, 1 represents the metalshell of a digester 2 the acid-resisting bricks, and 3 the mortar, athin layer of which is placed over the interior of the shell and betweenthe bricks.

My improved composition soon sets or hardens, and has a great adhesivepower. After the lining has been placed in the digester or other vessel,before the acid material is placed therein, it should first be slowlyheated, whereby the mortar is vitrified and unites the bricks and theiron or steel shell or other wall throughout.

In Fig. 2 of the drawing, I illustrate a cement tank with my imrovedcomposition used as a mortar for the rick lining. It will beunderstood that the drawings are submitted mainly to show an applicationof my improved composition of matter.

My improved acid-proof composition is, as stated, of very great adhesivepower and is not injured by heat. It sets rapidly and becomes very hard.It is, as will be obvious, easily compounded, and can be handled for uselike mortar or cement compositions.

While I prefer to use the materials in the proportions I have stated, Iam aware that the can be very considerably varied and desirable resultsstill be secured without departing from my invention.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A composition of matter, consisting of silicate of soda; glycerin;.oxid of lead; and fiiielycfush ed cind'i's'," combined in about theproportions stated into a homogeneous mixture.

2. A composition of matter, consisting of silicate of soda; glycerin;oxid of lead; and finely crushed cinders, combined in about theproportions stated into a homogeneous mixture, vitrified by theapplication of heat.

3. A composition of matter, consisting of COATING 0R PLASTIC.

silicate of soda; glycerin; oxid of lead; and In Witness whereof, I havehereunto set my afiller material combinedintoahomogeneous hand and sealin the presence of two Wit- 10 mixture of a mortar-like consistency. fnesses. 1 4. A composition of matter, consisting 0 5 silicate of soda;glycerin; oxid of lead; and ALBERT HINZKE i a filler material combinedinto a homogene- Witnesses:

ous mixture, vitrified by the application of D. C. EVEREST,

heat. G. A. BALDWIN.

I [W il AMW /z a, a J 5 52 A 3 f j; a? p y i tW/flmfl/7 2/5 7

